Prior to Free Form technology, Summit CD was
the first progressive lens to make smaller,
more fashionable frames possible.

Computers and virtual reality software once
designed lenses so advanced they couldn’t be
made, because the technology to produce them
didn’t exist yet. HOYA developed the Summit
family of progressive lenses during this
era, including the Summit ECP, and the
Summit CD (compressed design), which
incorporated the ECP design into smaller
frames.